
table{
    margin: auto;
    text-align: center;
}
.bg{
    margin: auto;
    background-image: url("../image/bj.png");
    background-position: center;
    background-repeat: repeat-y;
}
body{
    background-image: url("../image/bj.jpg");
}
.mw{
    color: slategray;
    text-align: center;
}

div{
    font-size: 120%;
}